machines/base_install/archlinux: install more packages
machines/base_install/archlinux: install more packages

* install new package "base" (there previously was a group)
* support "ldapsearch -Y GSSAP" using cyrus-sasl-gssapi
* install NetworkManager VPN plugins
* install Argon2 python bindings

fishilico/shared,fishilico/shared,fishilico/shared,fishilico/shared,fishilico/shared,fishilico/shared,fishilico/shared